package com.atguigu.rabbitmq.springbootrabbitmq.config;

import org.springframework.amqp.core.*;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * 配置类，发布确认（高级）
 * @author 连志阳
 * @since 2022/2/10
 */
@Configuration
public class ConfirmConfig {
    //交换机
    public static final String CONFIRM_EXCHANGE_NAME = "confirm_exchange";
    //队列
    public static final String CONFIRM_QUEUE_NAME = "confirm_queue";
    //RoutingKey
    public static final String CONFIRM_ROUTING_KEY = "key1";
    //备份交换机
    public static final String BACKUP_EXCHANGE_NAME = "backup_exchange";
    //备份队列
    public static final String BACKUP_QUEUE_NAME = "backup_queue";
    //报警队列
    public static final String WARNING_QUEUE_NAME = "warning_queue";
    
    
    /**
     * 声明交换机
     */
    @Bean("confirmExchange")
    public DirectExchange confirmExchange(){
        return ExchangeBuilder.directExchange(CONFIRM_EXCHANGE_NAME).durable(true)
            .withArgument("alternate-exchange", BACKUP_EXCHANGE_NAME).build();
    }
    
    /**
     * 声明队列
     */
    @Bean("confirmQueue")
    public Queue confirmQueue(){
        return QueueBuilder.durable(CONFIRM_QUEUE_NAME).build();
    }
    
    /**
     * 绑定
     */
    @Bean
    public Binding queueBindingExchange(@Qualifier("confirmQueue") Queue confirmQueue,
                                        @Qualifier("confirmExchange") DirectExchange confirmExchange){
        return BindingBuilder.bind(confirmQueue).to(confirmExchange).with(CONFIRM_ROUTING_KEY);
    }
    
    /**
     * 声明备份交换机
     */
    @Bean("backupExchange")
    public FanoutExchange backupExchange(){
        return new FanoutExchange(BACKUP_EXCHANGE_NAME);
    }
    
    @Bean("backupQueue")
    public Queue backupQueue(){
        return QueueBuilder.durable(BACKUP_QUEUE_NAME).build();
    }
    
    @Bean("warningQueue")
    public Queue warningQueue(){
        return QueueBuilder.durable(WARNING_QUEUE_NAME).build();
    }
    
    @Bean
    public Binding backupQueueBindingBackupExchange(
        @Qualifier("backupQueue") Queue confirmQueue,
        @Qualifier("backupExchange") FanoutExchange confirmExchange){
        return BindingBuilder.bind(confirmQueue).to(confirmExchange);
    }
    
    @Bean
    public Binding warningQueueBindingBackupExchange(
        @Qualifier("warningQueue") Queue confirmQueue,
        @Qualifier("backupExchange") FanoutExchange confirmExchange){
        return BindingBuilder.bind(confirmQueue).to(confirmExchange);
    }
    
}
